“Section 1. All persons born or naturalized in the United States, and subject to the jurisdiction thereof, are citizens of the United States...
“Section 2. Representatives shall be apportioned among the several States according to their respective numbers, counting the whole number of persons in each State, excluding Indians not taxed.”
Amendment XIV changed the apportionment method, basing it on citizens instead of residents.
Congress should make the statutory law conform to the Constitution ASAP.
It describes citizenship with regard to voting rights but is ambiguous wrt being counted in the census when it switches to “persons”.